In the women's championship, Irina Krush came into the last round needing only a draw against Camilla Baginskaite to seal clear first, and that's just what she got. She played it safe, but even within those self-imposed parameters she managed to outplay Baginskaite and win a pawn. That should have been enough to win, and under normal circumstances I suspect she would have closed the deal. Perhaps overly excited about clinching tournament victory, she got a bit careless and allowed her opponent some counterplay. Wisely, she decided to regain her bearings, reset her sights, and offer a draw. It was accepted, and her resulting score of 8/9 won the event (and $18,000), half a point ahead of Anna Zatonskih, who defeated Sabina Foisor in the last round. Tatev Abrahamyan took third with 6.5 points. (Full standings here.)
In the main event, Gata Kamsky could have clinched clear first with a win over Ray Robson, but although he seemed close to winning Robson managed to keep just enough activity to sneak out with a draw. That left the door open for any one of three players to catch him: Alejandro Ramirez (who faced Larry Christiansen), Alexander Onischuk (facing Kayden Troff) and Conrad Holt (whose opponent was second-seeded Timur Gareev). Two failed, but one succeeded.
Onischuk had the white pieces and a big rating advantage against Troff, but despite that never came close to winning. The game was drawn, and Troff secured his first GM norm - not bad for anyone, especially for someone who turned 15 less than a week ago!
Holt had a crazy game with Gareev that should have ended in a draw, but perhaps Holt wanted so desperately to win that he rejected a simple drawing continuation a few moves before the finish. I don't know that it was the last drawing chance, but it was certainly the easiest: 77...Qxd5 78.Bxd5 Nf5+ followed by 79...Nd4 and then capturing the b-pawn. Maybe he missed it, or maybe he hallucinated and forgot that 78...Nf5 was check (if it weren't check, White would have Be4, pinning and winning). Or, as I suggested above, he wanted to go for the win at all costs. Whatever the story, he didn't manage to catch Kamsky.
Ramirez did, however, to his own surprise and delight, outplaying Christiansen and finishing with a nice attack in an ending with heavy pieces. Ramirez (who incidentally became a GM at 15) will have a playoff match with Kamsky tomorrow/today (Monday) at 12:00 noon St. Louis time, and they will play two 25-minute games. If it's tied after that, then they will have a bid Armageddon game.
(Full standings here.)